Gas and diesel engines still power most vehicles and look poised to be with us for some time to come, even if their dominance is waning. Any engine that develops its power from burning fuel depends on ...

As bolt-ons go, swapping out your stock air cleaner for a tasty performance filter is a pretty easy mod. But is it worth it?

Holley's attention to detail is noteworthy. From the durable roto-molded housing and tubing to the unique, patent-pending "Slip-Seal" housing/filter/tube interface, it's clear that Holley did their ...

The air intake system in most cars involves a plastic airbox that houses a rectangular filter. No matter what car you have, l bet you can find cheap filters and expensive filters—so you get to decide ...

I have a 2014 Jeep JK Sport, and I'm wondering what the truth is concerning the use of cold air intakes and throttle body spacers. I read all of the blogs concerning the use of them; 50 percent of the ...

Regular readers will recall last month's testing of two Motordyne bolt-ons that successfully proved Helmholtz resonance can be used to increase exhaust gas scavenging and help your ride put out a few ...

If you're considering switching to a K&N cold-air intake, there are some things to consider first. Here's what to know about these mods and if they're worth it.

Intakes are vital automobile components that work to bring oxygen – a key ingredient in an internal combustion reaction – into the engine’s combustion chamber to modulate how much oxygen mixes with ...